MCP4921T-E/SN

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MCP4921T-E/SN

IC DAC 12BIT V-OUT 8SOIC

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規格

Part Status Active
DigiKey Programmable Not Verified
Number of Bits 12
Number of D/A Converters 1
Settling Time 4.5µs (Typ)
Output Type Voltage - Buffered
Differential Output No
Data Interface SPI
Reference Type External
Voltage - Supply, Analog 2.7V ~ 5.5V
Voltage - Supply, Digital 2.7V ~ 5.5V
INL/DNL (LSB) ±4, ±0.25
Architecture String DAC
Operating Temperature -40°C ~ 125°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
Mounting Type Surface Mount
Base Product Number MCP4921

概述

Description

The MCP4921T-E/SN is a 12-bit Digital-to-Analog Converter (DAC) from Microchip Technology. It features a single-channel output and operates with a supply voltage ranging from 2.7V to 5.5V. The device interfaces via a Serial Peripheral Interface (SPI), allowing for fast data communication and easy integration into various applications.
Key features include a maximum output voltage range of 0 to VDD, low power consumption, and an on-chip voltage reference. The MCP4921T-E/SN also includes a programmable gain, enabling voltage scaling for different applications. Its internal architecture includes a resistor ladder and an operational amplifier to ensure high accuracy and low distortion in the output signal.
This DAC is commonly used in audio applications, signal generation, and control systems where precise analog voltage output is required. Its compact design and effectiveness make it suitable for both hobbyist projects and professional applications.

Features

The MCP4921T-E/SN is a 12-bit Digital-to-Analog Converter (DAC) that offers several key features:
1. Resolution: 12-bit resolution provides up to 4096 discrete output levels.
2. Output Voltage Range: The device supports an output voltage range from 0V to VDD, typically 2.7V to 5.5V.
3. SPI Interface: It utilizes a Serial Peripheral Interface (SPI) for easy communication with microcontrollers.
4. Single Channel: The MCP4921 is a single-channel DAC, making it suitable for applications requiring one output signal.
5. Internal Reference: It includes an internal reference voltage, simplifying design requirements.
6. Low Power Consumption: The DAC operates at a low power level, making it efficient for battery-operated devices.
7. Shutdown Mode: Features a shutdown mode to reduce power consumption when inactive.
8. Fast Settling Time: The device has a fast settling time, allowing quick response in dynamic applications.
These features make the MCP4921T-E/SN suitable for a variety of applications, including signal generation, control systems, and audio output.

Package

The MCP4921T-E/SN is packaged in a 16-pin SOIC (Small Outline Integrated Circuit) format. This surface-mount package is designed for easy integration into electronic circuits while providing a compact size for space-constrained applications.

Pinout

The MCP4921T-E/SN is a 12-bit digital-to-analog converter (DAC) with a total of 8 pins. The pinout and their functions are as follows:
1. VDD (Pin 1): Power supply (typically +2.7V to +5.5V).
2. VSS (Pin 8): Ground reference.
3. SCK (Pin 7): Serial clock input for SPI communication.
4. SDI (Pin 6): Serial data input for DAC configuration and control.
5. CS (Pin 5): Chip select input to enable or disable the device.
6. LDAC (Pin 4): Load DAC input to update the output with the new digital value from the register.
7. VOUT (Pin 3): Analog output voltage corresponding to the digital input.
8. NC (Pin 2): No connection, not used.
The MCP4921 is typically used in applications requiring precise voltage outputs, such as signal generation, control systems, and audio applications.

Manufacturer

The MCP4921T-E/SN is manufactured by Microchip Technology Inc., a prominent American company specializing in microcontroller and analog semiconductor solutions. Founded in 1989 and headquartered in Chandler, Arizona, Microchip is known for its innovative products in the fields of embedded control, system-on-chip (SoC) solutions, and mixed-signal processing. The company serves a wide range of industries, including automotive, consumer electronics, industrial automation, and telecommunications. Microchip focuses on providing high-quality, cost-effective solutions to meet the specific needs of its customers, and it has a strong commitment to research and development, helping to advance technology in the embedded systems market.

Application

The MCP4921T-E/SN is a dual-channel, 12-bit digital-to-analog converter (DAC) commonly used in applications such as audio signal generation, sensor signal conditioning, waveform generation, and control systems. It is suitable for embedded systems, industrial automation, and communication equipment, providing precision analog output for data acquisition and control tasks. Additionally, it can be utilized in consumer electronics for volume control and other analog adjustments.

Equivalent

The MCP4921T-E/SN is a single-channel, 12-bit digital-to-analog converter (DAC) from Microchip. Equivalent products include the MCP4725 (I2C interface), MCP4801 (8-bit), and AD5320 (12-bit, serial interface) from Analog Devices. Other alternatives are the LTC1660 and MAX5216, which offer similar performance and features. Always check specific requirements like interface type and voltage range for compatibility.

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